ClearBoat Tour: Transparent Seas of Portugal

Discover Portugal’s first ClearBoat tour in Sesimbra. Sail transparent waters, explore hidden beaches, and connect with marine life intimately.

Duration: 1 hour, 30 minutes
Cancellation: 24 hours
Highlights
  • Ribeira do Cavalo Beach - Cruise along the Sesimbra coastline and pause for a swim near Praia Ribeiro do Cavalo, regarded as one of Sesimbra’s treasures.
What's Included
  • Bottled water
  • Life vest
What's Not Included
  • On-board WiFi
  • On-board restrooms
Additional Information

Experience a groundbreaking adventure in Portugal with ClearBoat, the country’s first fully transparent boat tour.
Setting sail from Sesimbra’s Harbour, this coastal journey takes you through breathtaking landscapes, reaching beautiful spots like Praia do Ouro and Praia do Ribeiro do Cavalo. During the tour, there will be opportunities to swim, unwind,…

Location
Rua Clube Naval de Sesimbra 263
Rua Clube Naval de Sesimbra
Meet us in Sesimbra Harbour: enter the main pier where all the boats are and get to the white entrance.
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
5.0
(77 Ratings)
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R246iqanav
Sep 23, 2025
A different and relaxing afternoon! - A very good and different experience! Being able to look at the bottom of the sea and the life that bubbles there takes us out of the day-to-day bustle and connects us to Nature. Marcelo and Diogo have great energy and let us know beautiful things. You see they like what they do. Super available and well disposed. The highlight was undoubtedly the break for a diving! We took our 10-year-old nephew who also loved the tour :)
Review provided by Tripadvisor
Nunob2014
Sep 22, 2025
Seatru the ocean - Fantastic experience! The transparent boat from Seatru is amazing for observing the seabed and marine life. Marcelo and Diogo were super friendly and attentive, making the tour even more special. I recommend 100%!
Review provided by Tripadvisor
Flyer04532851232
Sep 20, 2025
Clear boat experience - We had the Clearboat experience and it was incredible... Marcelo and Diogo made this experience worth it. They showed us the roughest points of the coast and told us about various curiosities. Very interesting and to repeat again. Next time will be the clear kayak 😉
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Venture15557240656
Sep 10, 2025
Unique experience❤️ - Marcelo and Rui are wonderful people! The boat is simply spectacular, for the year I will repeat the experience, loved! I went with a very friendly group that belongs to the Bar Contraste!
Review provided by Tripadvisor
Sara
Sep 9, 2025
Outstanding Experience - O ncredible family experience with a wonderful team sensitive to every detail who elevates this experience to fantastic memories for a lifetime
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Paulapg3907aa
Sep 1, 2025
Fantastic experience with Seatru! - The experience with Seatru in Sesimbra was simply fantastic! The boat ride through the caves and rocky formations was amazing, with right to very interesting explanations from the captain and crewman about the area. The Ribeira do Cavalo looked like the exit of a postcard, crystalline water in turquoise blue tones, perfect for diving and exploring. The staff was impeccable, super fun, attentive and always making sure everyone was at ease. One of those days that are kept in memory. I recommend 100%. Thank you for the fantastic experience and the good moments!
Review provided by Tripadvisor
Happiness57747123985
Sep 1, 2025
Amazing experience - Amazing experience, more than recommended. The guides were impeccable and were explaining with very detail all the features of the coast of Sesimbra, always very accessible and the boat was fantastic and with an excellent view from the sea floor
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Amaliarosa1
Aug 31, 2025
Exceptional! - We did the experiment on 30/08/25. We loved it! 👏👏👏 Excellent team, always very fun, good luck to Marcelo and Diogo, very communicative, they left us very comfortable from the beginning to the end of the experience. I would like to leave a positive note also to Débora who was exceptional in advising the time of the experience, as well as all the care of information, on the eve of the event. I highly recommend. Amalia Rosa and family 🌹
Review provided by Tripadvisor
Z2199emirinaa
Aug 28, 2025
Very nice and pleasant experience - It was a good experience and good organization, there was always a person responding to our questions. The trip was very nice, although we were not very lucky and the water was dark that day, we saw some fish, but not much. But anyway the Arrabida coast and beaches are beautiful, we could take a bath and all in all it was a very pleasant trip.
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Anas12103
Aug 28, 2025
Better? Impossible! - Exceptional experience! Both in the fact that the boat is all transparent where we can see the bottom of the sea, the marine life, immense fish, as well as in the views: the sea and the whole coast, the beaches etc; We had many unexpected friends (Golphins), it was really magical, we still dive into the waters worthy of the Caribbean and of course: Marcelo and Vitor were TOP! In addition to great guides, acquainted with the area and always taking care of our safety, they also gave tips for excellent restaurants! Super good morning! I highly recommend.
Review provided by Tripadvisor
From $64
up to 12 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).